Clod-crusher.



LEANDER H. SMITH, OF KILLBUCK, OHIO.

oLoD-cRUsIIER. 1

Specification of Letters Patent.

Patented Dec. 29, 1908.

Application mea' May 9, 1908. serial No. 431,795. Y

To all whom t may concern: I

Be it lmown that I, LEANDER H. SMITH, a citizen of the United States,residing at Killbuck, in the county ofHolmes and State of Ohio, haveinvented new and useful Improvements in @lod-Crushers, of which thefollowing is a specification.

This invention relates to improvements in clod Crushers or groundbreaking` harrows of that type comprising ,a drag frame provided withpulverizing rolls, the object of the invention being to provide a simpleand inexpensive construction of implement of this character having animproved construction and arrangement of angular pulverizing rolls,whereby, in the operation of ,drawing the implement over the surface ofa broken field or plot of ground, the olods will be thoroughly brokenand reduced to a pulverized condition, leaving the earth ina loose andcomminuted state. i

The invention consists of the featuresV of construction, combination andarrangement of parts hereinafter fully described and claimed, referencebeing had to the accompanying drawing, in which:-u

Figure 1 is a perspective view of a clod crusher embodying my invention.Fig. 2 is a side elevational viewvr thereof with the crushing rollsshown in transverse sections -on a line through their cylindricaljournals.

Fig. 3 is a perspective view of a portion of one of the pulverizingrolls. Fig. 4 is an end elevation of the front roll. Fig; 5 is a similarview of one of the other rolls.

Referring to the drawing, the numeral 1 designates the frame of theimplement,

which is in the form of a drag frame referably of oblong rectangularform, an com prises a air of longitudinal side bars 2, connecte by frontandrear cross bars 3 and 4 and cross braces `5. A suitable type of draftcoupling 6 is applied to the front cross,

irons or clips 10 secured to the bars by bolts 11. In the presentinstance I have shown the use of three angular breaking rolls, but anynumber of such rolls, arranged one in rear of the other, may beemployed.

In theoperation of the device, it will be understood that the 4draftanimal or animals are attached to the draft connection 6 and theimplement drawn across the broken field or plot of ground, the rolls 9being rotatedby contact with the ground surface. In the rotation of eachroll, the angular and Hat faces thereof alternately come into action toraise and depress the drag frame and to cut through and crush the olodsof earth, the corner langles cutting through the olods while the flatfaces bear upon and crush the particles thereof. As the corner angle ofeach roll reaches the lowest position in its course of rotation, it notonly cuts through the soil but elevates the drag frame,`so that when thenext adjacent flat face in the direction of rotation of said roll comesin contact with the soil, it will allow the frameto drop, whereby theweight of the frame is utilized in the crushing action. This combinedcutting and crushing action of the angular rolls results in all theolods and large and hard particles of the earth being broken and reducedto a loose and comminuted condition, with obvious advantages in theplanting of the seed and the retention of moisture and the consequentgrowth of crops. .As the bearings of the rolls are disposed at somedistance apart, freedom of motion of the rolls is insured, as anytendency of the rolls to bind in their bearings is avoided.

In order to protect the corners of the rolls from wear or breakage andto increase their crushing action on the soil, each roll is pro-- videdat each of its corner portions with a combined wear land breaking strip.The front roll, as shown in Fig. 4, is provided at each of its cornerportions with an L-shaped or channeled breaking strip 12, the flanges ofwhich lap over upon the sides thereof, while Vthe intermediate and lastroll of the series are recessed in their sides adjacent their corneredges to receive metallic strips 13, which project beyond the faces ofthe roll to provide breaking extensions.

It will be seen that the invention provides an effective implement forthe purpose described which possesses the additional advantage of beingsimple of construction and susceptible of being manufactured at a lowcost.

Having thus fully described the invention, what is claimed as new is Aclod Crusher and pulverizer comprising a frame embodying side bars,iront and rear cross bars, and crossed braces connecting the front andrear ends of said side bars and in termediately connected with eachother at the crossing point, each oi said side bars being formed in itslower edge with a series of bearing recesses, a series of transversecrushing and pulverizing rollers7 each consisting of a bar havingintermediate and end portions of angular form with their faces unbrokenand arranged at an angle oi 90 to each other, the intermediate portionso'i the rollers extending between the side bars and the end portions ofsaid rollers beyond said side bars, and said intermediate and endportions of the respective rollers being connected by reduced portionsof cylindrical form providing journals iitting in said bearing recesses,the adjacent ends of the intermediate and end portions of each rollerconstituting stop shoulders engaging the side bars to provent endwisemovement oi' the rollers, and detachable bearing plates arranged uponthe lower faces of thc side bars and having llattened ends secured tosaid bars and partially circular body portions dispose-d opposite saidrecesses and coacting therewith to lorln bearings for the ournals oi thcrollers, suhstantially as described,

In testimony whereof I allix niy signature in the presence of twowitnesses.

LEAN DER H. SMl'll l. Attested by- C. C. THOMPSON, S. H. WnrsLnR.

